Home / 80,064.75-120,136.14-53,717.61

Finding the Fourth Proportional to 80,064.75, 120,136.14 and 53,717.61

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Solution

The fourth proportional to 80,064.75, 120,136.14 and 53,717.61 is: 80,602.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,064.75 : 120,136.14 = 53,717.61 : x
  2. Step 2: Convert to fraction form
    80,064.75/120,136.14 = 53,717.61/x
  3. Step 3: Cross multiply
    80,064.75x = 120,136.14 × 53,717.61
  4. Step 4: Simplify right side
    80,064.75x = 6,453,426,315.43
  5. Step 5: Solve for x
    x = 6,453,426,315.43/80,064.75
  6. Step 6: Final answer
    x = 80,602.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.